We construct a family of singular solutions to some nonlinear partial differential equations which have resonances in the sense of a paper due to T.Kobayashi. The leading term of a solution in our family contains a logarithm, possibly multiplied by a monomial. As an application, we study nonlinear wave equations with quadratic nonlinearities. The proof is done by the reduction to a Fuchsian equation with singular coefficients.
@article{1212156664,
author = {TAHARA, Hidetoshi and YAMANE, Hideshi},
title = {Logarithmic singularities of solutions to nonlinear partial differential equations},
journal = {J. Math. Soc. Japan},
volume = {60},
number = {1},
year = {2008},
pages = { 603-630},
language = {en},
url = {http://dml.mathdoc.fr/item/1212156664}
}
TAHARA, Hidetoshi; YAMANE, Hideshi. Logarithmic singularities of solutions to nonlinear partial differential equations. J. Math. Soc. Japan, Tome 60 (2008) no. 1, pp. 603-630. http://gdmltest.u-ga.fr/item/1212156664/